ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,531, issued on June 2, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).

"Method and control unit for operating a hybrid vehicle" was invented by Christian Kuhmann (Friedrichshafen, Germany), Falko Platzer (Ravensburg, Germany), Tobias Brand (Eching, Germany), Florian Hannemann (Munich) and Alexander Jungaberle (Schlier, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a hybrid vehicle includes, determining a shift element to be utilized for decoupling of slip and a decoupling differential speed depending on whether a starting process is carried out, depending on whether the transmission is transferred fro...